Re: [Scheme coding] turning a list into a markup/string

[David Kastrup]

Kieren MacMillan <address@hidden> writes:

> Hi David,
>
>> The line below it is a 2.21.0 feature that cannot be used from a
>> LilyPond for which we have an installer.
>
> Ah. Thanks. (Note: feature/version disconnection is another thing that
> caused my past Scheme efforts to stumble, leading to becoming
> discouraged in my efforts.)
>
>> I wasn't aware that the line above is problematic but I see how it
>> could.  Maybe write #some-music instead.
>
> That works great. Is there a similar fix for the next input line?
>
>     \markup \right-column \with-color #red { \buzz { c' d' e' c' } }

Well, ##{ c' d' e' c' #} would work.  Basically, almost everything that
is not either a markup or markup list in 2.20 has to start with # .

And I am not sure that the second line will survive eternally: it's
discomfortingly close to markup list syntax and thus would be tricky to
implement once markup commands get more intelligent predicate
interpretation, like music functions do now.

It's conceivable when { gets read to check whether the predicate would
accept '() (the simplest markup list) and only get into music mode when
it doesn't.

Markups are icky things.

-- 
David Kastrup